/*
   Copyright (C) 2009 Sun Microsystems Inc.
   All rights reserved. Use is subject to license terms.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; version 2 of the License.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA
*/

#ifndef HA_NDBINFO_H
#define HA_NDBINFO_H

#include <mysql/plugin.h>

int ndbinfo_init(void *plugin);
int ndbinfo_deinit(void *plugin);

class ha_ndbinfo: public handler
{
public:
    ha_ndbinfo(handlerton *hton, TABLE_SHARE *table_arg);
    ~ha_ndbinfo();

    const char *table_type() const
    {
        return "NDBINFO";
    }
    const char **bas_ext() const
    {
        static const char *null[] = { NullS };
        return null;
    }
    ulonglong table_flags() const
    {
        return HA_REC_NOT_IN_SEQ | HA_NO_TRANSACTIONS |
               HA_NO_BLOBS | HA_NO_AUTO_INCREMENT;
    }
    ulong index_flags(uint inx, uint part, bool all_parts) const
    {
        return 0;
    }

    int create(const char *name, TABLE *form,
               HA_CREATE_INFO *create_info);

    int open(const char *name, int mode, uint test_if_locked);
    int close(void);

    int rnd_init(bool scan);
    int rnd_end();
    int rnd_next(uchar *buf);
    int rnd_pos(uchar *buf, uchar *pos);
    void position(const uchar *record);
    int info(uint);

    THR_LOCK_DATA **store_lock(THD *thd, THR_LOCK_DATA **to,
                               enum thr_lock_type lock_type)
    {
        return to;
    }

    bool low_byte_first() const
    {
        // Data will be returned in machine format
#ifdef WORDS_BIGENDIAN
        return false;
#else
        return true;
#endif
    }

    bool get_error_message(int error, String *buf);

    uint8 table_cache_type()
    {
        // Don't put ndbinfo results in query cache
        return HA_CACHE_TBL_NOCACHE;
    }

private:
    void unpack_record(uchar *dst_row);

    bool is_open(void) const;
    bool is_closed(void) const
    {
        return ! is_open();
    };

    bool is_offline(void) const;

    struct ha_ndbinfo_impl &m_impl;

};

#endif
